T
Tsuyoshi Ishikawa
Researcher at Japan Agency for Marine-Earth Science and Technology
Publications - 91
Citations - 3562
Tsuyoshi Ishikawa is an academic researcher from Japan Agency for Marine-Earth Science and Technology. The author has contributed to research in topics: Oceanic crust & Slip (materials science). The author has an hindex of 25, co-authored 82 publications receiving 3154 citations. Previous affiliations of Tsuyoshi Ishikawa include Kōchi University & Carnegie Institution for Science.
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Origin of the slab component in arc lavas from across-arc variation of B and Pb isotopes
TL;DR: In this paper, across-arc variations in the concentrations and isotopic compositions of boron and lead observed in lavas from the Izu arc (Japan) have been reported, suggesting that a homogeneous slab fluid contributes to all Izu volcanoes, but that the amount of this fluid decreases continuously with increasing depth of the subducting slab.
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Boron isotope systematics of marine sediments
Tsuyoshi Ishikawa,Eizo Nakamura +1 more
TL;DR: Boron contents and boron isotopic compositions were determined for modern and ancient (Permian to Miocene) marine sediments, including pelagic clay, calcareous ooze, siliceous ooz and neritic clay sediments as discussed by the authors.
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Low Coseismic Friction on the Tohoku-Oki Fault Determined from Temperature Measurements
Patrick M. Fulton,Emily E. Brodsky,Yasuyuki Kano,Jim Mori,Frederick M. Chester,Tsuyoshi Ishikawa,Robert N. Harris,Weiren Lin,Nobuhisa Eguchi,Sean Toczko,T Expedition,Kr Scientists +11 more
TL;DR: The Japan Trench Fast Drilling Project (Integrated Ocean Drilling Program Expedition 343 and 343T) installed a borehole temperature observatory 16 months after the March 2011 moment magnitude 9.0 Tohoku-Oki earthquake across the fault where slip was ~50 meters near the trench, establishing a baseline for frictional resistance and stress during and following the earthquake.
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Boninitic volcanism in the Oman ophiolite: Implications for thermal condition during transition from spreading ridge to arc
TL;DR: The discovery of boninite, a typical high-MgO andesite, in the Oman ophiolite is reported in this paper, indicating that the Alley boninites represent primitive melt generated by partial melting of hydrous peridotite.
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Source, composition and distribution of the fluid in the Kurile mantle wedge: Constraints from across-arc variations of B/Nb and B isotopes
TL;DR: In this article, B and Nb concentrations and B isotope composition were determined for lavas covering the entire length of the Kurile arc, and the results indicated that the mantle wedge is extensively metasomatized by B-rich fluid derived from the subducting slab.